When You Do Work You Give It Energy

When You Do Work
You Give it Energy!
Holly Beech
Professor Evans
SCI 110

Holly Beech
Professor Evans
SCI 110
31 January 2010
Whenever You Do Work You Give It EnergyHow would one know that working creates energy? Well the definition of energy might give a clue. “Energy can be defined as the ability to do work” (Tillery, Enger, and Ross, 2008, p. 59). If one were to think about this statement unscientifically, it might evoke the picture of some one being to tired, having no energy, or being wide awake and, full of energy, to do work. The main question though, would be: When ever you do work, you give it energy, how would one know for sure that this is a true statement? This will be answered through the detailed examination of energy and work. Again we know the name given to something able to do work is energy. Work and energy have the same units of measurement. Energy as well as power and force are often confusing to people. Force is when there is a pull or push on an object or body. The amount of work can be determined depending on the strength of the force used and how far in which it was moved. The measurement of power is the rate at which work is done. Power can also be described as the rate at which energy is transformed.

Energy can be broken into two different types. Often called stored energy potential energy represents work that has already been done. A book lying on the top shelf of a book case has potential energy and so does a fully stocked soda machine. If the book were to fall off the shelf, or a soda shoots into the dispenser, the potential energy become kinetic energy.

Nothing can move with out energy, and the energy of movement is kinetic. The book on the shelf had to be placed in that position and the soda machine had to be stocked. The weight of the book, the force, and the distance of the shelf, and all of the motions needed to reload a soda machine equals work. W=Fd. The work it took to load the soda can, created...

You May Also Find These Documents Helpful

...﻿Summary
When a force displaces, work is said to be done. The force should be the net force and there should be a net displacement of the object.
Work done by force acting on an object in the direction of the force is equal to the product of the magnitude of the force and the displacement covered by the object in the direction of the force.
The work done is measured in joule in the SI system after the scientist James Prescott Joule.
Erg is the CGS unit of work.
Conditions for work to be done:
A net force should act on an object.
The object must be displaced in the direction of the net force.
Work is said to be done when an object is displaced on applying a certain force.
W = F × s, Where
W = Work done on an object
F = Net force on the object
s = Displacement of the object
Joule is defined as the work done when the net force of one newton acts on a body and displaces it in the direction of the force by one metre.
Work done could be either positive or negative.
When both the force and the displacement are in the same direction, positive work is done.
When force acts in a direction opposite to the direction of displacement, the work done is negative.
Summary
LearnNext Video
Table of Contents[Show]
The energy of an object...

...Holt Physics—Chapter 5: Work and Energy Price
I. Section 5.1—Work
A. Definition of work
1. Work does not mean the same thing in Physics as it does in the everyday sense of the word.
2. Work is defined as a force causing a displacement.
Work = force x displacement
W = Fd
3. Work is NOT done on an object unless the displacement is greater than zero
4. The only forces that are considered to dowork are those that are parallel to the displacement.
5. For this reason we use our trigonometric functions to calculate forces applied at an angle.
Insert Fig 5-2
6. Note that Θ is the angle between the applied force and the displacement.
7. Work is described in Newtons x meters (force x displacement). The unit of work is the Joule (J)
8. 1 Newton meter = 1 Joule
9. Work is a vector with both direction AND magnitude. This means WORK CAN BE NEGATIVE!
10. Negative work is most commonly used to slow an object down or decrease its velocity.
II. Section 5-2: Energy
A. Kinetic Energy...

...Whenyouwork as an au pair…
…you increase you knowledge in a foreign language
…you learn more about another culture
…you experience a different environment
…you meet new people
…you get work experience
…you visit new places
…you get a memory for life
Working as an au pair is a rewarding experience because you learn to stand on your own two feet and take care of yourself.
Tasks
The most common and important task is to take care of the children in the family. It often involves making them breakfast, driving them and picking them up from school, play with them and help them with their homework.
The job also contains some housework, such as doing the dishes, the laundry and the cooking.
The tasks varies a lot from family to family, and that’s why it’s so important that the employer and employee agrees over the assignments before the au pair starts working.
Requirements
The law in Sweden says that a person that applies for an au pair employment abroad needs to fill in the following demands:
Between 18 – 28 years
(If the person is older than 28, her or she can apply for a job as a nanny)
Experience from babysitting
References from other jobs are also valuable, especially those that involves being a leader in any activity for children, like teaching a theatre...

...Expriment 4: Work, Power and Energy
Department of Math and Physics
College of Science, University of Santo Tomas
Espana, Manila Philippines
Abstract
Two activities were performed in this experiment. For the first activity, the weights of the different members of the group were each computed and were used in order to determine how much work and power each member exerted in climbing up and down the stairs while being timed. From the data obtained, it is apparent that as one is faster, more power and work is exerted. For the determination of energy of a tossed ball, the data obtained shows that potential energy is inversely proportional to kinetic energy.
1. Introduction
Work, Power, and Energy are three words that are commonly used in a man’s existence. Work refers to an activity involving a force and movement in the direction of the force. Energy is the ability to dowork. Power is the rate of doing work or the rate of using energy. This experiment was designed to demonstrate the conservation of mechanical energy, to measure change in kinetic and potential energies as a ball moves in free fall and to determine power output when going up and down the stairs.
2. Theories
This experiment is to studying...

...4: Work, Power and Energy
Arlie Bamiano, Jealine Marie Bernabe, Petrenne Clarice Caimbon, Jhia Caso
Department of Biological Sciences
College of Science, University of Santo Tomas
España, Manila Philippines
Abstract
The experiment deals primarily with computing the work done by gravity on each member in two scenarios (going up and down the stairs of the second floor and the third floor of the Main Building) wherein weight was also considered and following this, the power output of each member was also computed. Using the Logger Pro, the kinetic and potential energies of a ball in free fall were graphed and compared. At the end of the experiment, it was said that member #2 was the most “powerful” among the group since she had the highest power output both in going up and going down the stairs and in the second activity, the results were obtained and the predictions made were correct.
1. Introduction
Work, power and energy are three words that are commonly used in a man’s
activity involving a force and movement in the direction of the force. Energy is the ability to dowork. Power is the rate of doing work or the rate of using energy.
This experiment was designed to demonstrate the conservation of mechanical energy, to measure change in kinetic and potential...

...the most populated of them all. It also has the state capital, Honolulu. There is an abundance of beautiful plants and animals but there are also dangerous ones living among the people of Oahu as well. It’s a beautiful place but it needs to be respected and cautiously traveled.
There’s a good feeling about Oahu, even when the weather isn’t great or even when it’s winter. The weather is just about always warm and pleasant. When it rains it feels nice to sit around and enjoy the water droplets fall on the skin and roll off. Almost all of the beaches are crystal clear with warm sand, but beware when in the water. The ocean swells can go from playful three-foot waves to humongous twenty-foot monsters in just under five minutes. It makes for excellent relaxation or surfing. There are also many hidden dangers below the water even though it’s just about as clear and warm as bath water. Many times there are coral reefs that reside just below the surface in many areas. They can be very hazardous to even the most experienced surfer or swimmer; one small scrape can leave you cut quite deep.
Coral reefs, while dangerous, could be the least of your worries in Oahu if you find yourself in the wrong place at the wrong time. Sharks are prevalent among the waters of Oahu and most of the rest of the Hawaiian Islands. There may be up to forty species living around the Islands but a few are more likely...

...﻿Experiment 7: Work, Power and Energy
Laboratory Report
John Karl Macrohon
Department of Math and Physics
College of Science, University of Santo Tomas
España, Manila Philippines
Abstract
The experiment is subdivided into two activities: Power and Energy of a Tossed Ball (Physics with Computers). The work done by gravity on each member when going up and downstairs of the second and third floors of the Main Building and the power output of each member of the group in each case was computed in activity 1 (Power), while in activity 2 (Energy of a Tossed Ball),a ball was thrown vertically up from a height of 50.0cm from the motion detector to compare the graphs the it collected from the predicted graphs of the group . The results obtained from the experiment clearly demonstrated conservation of mechanical energy, the change in kinetic and potential energies as a ball moves in free fall and the power output when going up and downstairs.
1. Introduction
Long ago, people used to trade by only exchanging products when the concept of 'money' was yet to be introduced. Now we do know the concept of money. But if we were to define money, it would not be an easy task. But we do know it can manifest itself in many forms. Money is a concept imagined by man and it plays a very big role in the present world....

...B.
Course : BS in Business Administration Major in Operations
Management
Subject : Work Ethics
Adviser : Prof. Romana L. Bitancor
Did You Bring Your Ethics to Work Today?
Unethical behavior has become an increasingly prevalent issue in today’s workplace. It is a sad truth that in every workplace, there are always employees who take part in unethical behaviors, mine is not an exemption. In fact, if an assessment of my workplace in terms of ethical behavior would be conducted basing on what I have learned in studying work ethics for three sessions now, I can honestly say that it will most likely result to a poor rating. Ethics is a word so familiar that everyone seems to be aware of it yet very few understand what it really means. I am one among those who assumed that good work ethics is simply manifested by working hard, being on time or being respectful to others. Knowing what is wrong and what is right in a workplace was once my simple perception of the word work ethics. Studying work ethics made me realize that there’s a lot more to good ethics than just by simply working hard. Having a good attitude is a paramount to having good work ethics. It is professionalism, diligence, caring about my work and to the people I work with. Being able to distinguish what is right from wrong is pointless unless I am...